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Acoustic heat pump uses sound energy to heat and cool homes



Ilustração de uma bomba de calor que transforma o som em calor

In the conditions of the energy crisis, the possibilities of launching new technologies and developing others that are already known are taking on a new expression. The gas crisis, the prices of other fossil fuels and the reflection of these high energy production prices are opening the door to new products. This was the goal of investing in a solution that has been talked about for several years to use an acoustic heat pump that does not emit greenhouse gases and has a very low carbon footprint.

In practice, this equipment uses sound energy to heat and cool homes. Do you know that even noise can generate heat energy?

With climate change, the energy transition is inevitable. We know solar, wind and water energy, but sonic energy is now the new alternative to fossil fuels.

The technology has been used by several companies, including the French horses which developed a product that uses sound waves in a heat pump to provide environmentally friendly, economical and easy-to-use thermal comfort.

How does thermoacoustics work?

Thermoacoustics is a complex natural phenomenon that includes thermal, acoustic and hydromechanical mechanics. Inside the machines, a gradient of temperature or electricity generates acoustic waves that are automatically amplified. When performing work of compression/expansion, as does a piston in a heat engine or compression, acoustic waves effectively pump out heat.

The operation does not use moving parts or refrigerant gas. When compressed, waves release heat, and when expanded, they release cold.

Advantages of acoustic heat pumps

In the construction sector, a high percentage of carbon emissions come from district heating and hot water. The use of acoustic heat pumps can help to significantly reduce these emissions. Compression/expansion work uses a neutral gas that does not cause a greenhouse effect and leaves a small carbon footprint.

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It is estimated that using an acoustic heat pump can reduce CO2 emissions by up to 80%.

The technology is mainly developed using fully recyclable materials. In addition, it is a particularly economical product with a service life of more than 30 years and does not require special care.

Whereas traditional high temperature heat pumps must turn on and off when the outside temperature is above 5˚C, an acoustic heat pump works at all times by power modulation.

Comparison with traditional heat pump

The traditional heat pump is known for its high cost, especially in terms of maintenance. In addition, it has a limited life and a cycling problem, which can contribute to the degradation of the theoretical conversion efficiency (COP).

Another negative point for a traditional heat pump is the use of gaseous refrigerant. Not only is this gas harmful to the environment, it also requires hiring a professional to install the appropriate pump. This may increase the selling price of the product to some extent.

According to the company, for an acoustic pump, the installation is quite simple and does not require the services of a specialist. The acoustic heat pump also has the lowest cost of ownership compared to all modern heat pumps and traditional high temperature boilers.

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Everything has been delivered. 10 Bugatti Centodieci are already in the hands of the owners



Everything has been delivered.  10 Bugatti Centodieci are already in the hands of the owners

OAll Bugatti Centodieci have been delivered, the Molsheim-based brand said on Monday. Cristiano Ronaldo received the number 07 in October this year. and Bugatti has now revealed that the latest unit – #10 – is already in the possession of its owner.

“The Centodieci combines all the values ​​of the Bugatti brand in an extraordinary package: rarity, innovation, heritage, craftsmanship and unrivaled performance. The production batch of 10 units was so in demand by our customers that it was sold before the Centodieci. was even officially presented,” said Christophe Piochon, president of Bugatti.

This latest example is finished in Quartz White with carbon fiber trim on the bottom and matte grilles. The brake calipers are painted in Light Blue Sport, as is the logo on the rear that refers to the EB110, the iconic Bugatti model that inspired this Centodieci. Inside, the predominant color is also blue, as you can see in the images above.

This block is powered by the same block as the other nine instances. The 8.0-liter W16 with four turbines is capable of developing 1600 hp. In terms of performance, this allows the Centodieci to hit 100 km/h in just 2.4 seconds and reach a top speed of 380 km/h.

Recall that each unit costs the owners eight million euros before taxes.

Read also: We already know when the Bugatti Centodieci fell into the hands of Ronaldo.

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The first Dacia hybrid. “The cheapest hybrid family on the market”



The first Dacia hybrid.  "The cheapest hybrid family on the market"

BUT Dacia revealed this Monday that the hybrid engine has been available since March on the Jogger, the Romanian brand’s model known to be available with a seven-seat variant.

The Jogger Hybrid 140, Dacia’s first hybrid, will hit dealerships in March, but customers can expect and order it as early as January.

The price has been revealed by Dacia and since it’s only available in the seven-seater SL Extreme, it starts at €28,800. The brand claims it is “the most affordable hybrid family car on the market.”

Available in six existing colors to celebrate the launch of this hybrid, there will be a slate gray version, as you can see in the images above.

Equipped with a 1.6 liter four-cylinder petrol engine with 90 hp, the Jogger is also powered by two electric motors (a 50 hp engine and a high-voltage starter-generator). The total power is 140 horsepower. The electric transmission is automatic, four-speed, connected to an internal combustion engine, and two speeds are connected to an electric motor. This combined technology was possible, according to Dacia, only due to the lack of clutch.

Combined with the energy recovery levels of the 1.2kWh (230V) battery pack and the efficiency of the automatic transmission, regenerative braking delivers all-electric traction on 80% of urban journeys and saves up to 40% of fuel compared to a combustion engine vehicle.

Read also: Dual-fuel Dacia Jogger Eco-G. We tried 5 seater and LPG…

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See how Tesla tests its electric Semi truck in the worst-case scenarios



Tesla Semi camião elétrico testes

Tesla has finally been able to bring its long-awaited Semi to market. This electric truck promises to revolutionize transportation and bring all the unique characteristics of this type of electric vehicle to this class of vehicles.

Now that the first units have been delivered, there is hope that they will finally be mass-produced and reach more transport companies. With so many promises to be kept, a new video is now emerging showing Tesla testing its Semi truck under worst-case scenarios.

Tesla Semi is already on the market

Like all Tesla electric vehicles, Semi follows the same line of creating a unique design associated with a platform with the most modern technology available. The proof is in what was presented to the public and surprised most people.

To prove the quality of this new proposal, Tesla published in your LinkedIn account new video. In it, he reveals some of the testing he's done to determine the strength and quality of the Semi's design and its (potential) durability.

Tests to prove its durability

It has been revealed that the Tesla electric truck is subjected to numerous tests and its application in the worst scenarios that drivers may face. It doesn't stop at the ruggedness of the Semi's designs, but goes further and focuses on the motors and batteries themselves.

This is the proof that many have been waiting for to ensure that this new proposal is not limited to a lot of autonomy. Its resistance is great and will provide greater durability, further enhancing the Semi's value and performance.

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high quality electric truck

Tesla has already showcased the Semi's quality with a video showing its truck driving roughly 500 miles on just one charge. The big news here is that he managed to make this long journey with a maximum load of about 37 tons.

Now Tesla remains to widely place the Semi on the market. At the moment, only a few companies have access to this new product, with a very long list of pending deliveries, who want to start mass-using this electric truck offering.

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